Ron,
You probably need to - and I'd recommend most folks do so,too - get some colostrum REPLACER and have it on hand for situations where you just can't get the cow in to milk her...or whatever.
The colostrum SUPPLEMENTS are 'not much punkin'...better than nothing, but typically you're not able to get enough immunoglobulins into circulation with them to give full protection.
Best colostrum REPLACERS will have 150 gm(or more) immunoglobulins per bag. most of the supplements run in the 50-60 gm range. Unfortunately, most farms stores, tsc, etc. only carry supplements'; you'd have mail order a good replacer, and likely won't find a good one for less than about $35/bag - but they're usually good for 18 months or so after manufacture date. I keep mine in the freezer - probably extends 'shelf life' substantially.
Good overview here:
http://extension.psu.edu/animals/dairy/ ... das-11-180